Home / 8,112.12-12,131.10-5,898.39

Finding the Fourth Proportional to 8,112.12, 12,131.10 and 5,898.39

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Solution

The fourth proportional to 8,112.12, 12,131.10 and 5,898.39 is: 8,820.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.12 : 12,131.10 = 5,898.39 : x
  2. Step 2: Convert to fraction form
    8,112.12/12,131.10 = 5,898.39/x
  3. Step 3: Cross multiply
    8,112.12x = 12,131.10 × 5,898.39
  4. Step 4: Simplify right side
    8,112.12x = 71,553,958.93
  5. Step 5: Solve for x
    x = 71,553,958.93/8,112.12
  6. Step 6: Final answer
    x = 8,820.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.